madVR - high quality video renderer (GPU assisted)

[mindbomb]

im occasionally hearing of problems of stuttering from people when madvr switches their display to 23.976hz.
Does anyone know what is causing this or what to suggest to those with this problem?

Oh, i guess one thing they can do is make the default refresh rate 23.976 hz.

[namaiki]

Originally Posted by mindbomb

im occasionally hearing of problems of stuttering from people when madvr switches their display to 23.976hz.
Does anyone know what is causing this or what to suggest to those with this problem?

Oh, i guess one thing they can do is make the default refresh rate 23.976 hz.

Do they have exclusive mode enabled? Also, maybe just try use 60Hz with smooth motion enabled and don't switch to ~24Hz.

[cadmium]

Hi,

I tried doing a bunch of research, but how in the world do I use pixel shaders with MadVR in KMPlayer? It seems like there is almost no information about this...

I tried looking through the JanWillem32 thread but didn't get too much out of it.

Would I see a noticeable difference if I add pixel shaders into the mix? I have an i7 3820 + GTX 670 and am currently on Jinc 4 taps/Jinc 3 taps/Lanczos 4 taps.

Thanks in advance!

[kasper93]

Originally Posted by mindbomb

im occasionally hearing of problems of stuttering from people when madvr switches their display to 23.976hz.

I'm not sure, but I think I have the same problem, not often, though. Stuttering is gone after switching to exclusive mode and go back to windowed...

[mastrboy]

Have a question about usage/scaling:
If I set the following settings in Madvr, switch to mathing display mode - when media player goes fullscreen, restore original mode - when media player leaves fullscreen, and the list of display modes to 720p60,1080p60 only.
Will madvr then play back 720p content at 720p resolution and 1080p content at 1080p resolution, while still upscaling everything below 720p to 720p?

[Plutotype]

Hi folks, dont know if this is correct thread, but:
a. How much does a 65x3 3D LUT takes approximately in Gb? How much takes 256x3 3D LUT in storage capacity?
b. Does 3D LUT processing using madVR take significant CPU % when imported into madVR? Does it utilise significantly more CPU or the GPU?

thanks
Pluto

[dansrfe]

Originally Posted by Plutotype

a. How much does a 65x3 3D LUT takes approximately in Gb? How much takes 256x3 3D LUT in storage capacity?
b. Does 3D LUT processing take significant CPU % when imported into madVR? Does it utilise significantly more CPU or the GPU?

a. My 3DLUTs are all at 96MB. I'm not sure how measurement data is stored/compressed and/or padded in the 3DLUT therefore I cannot claim that the size is fixed.

b. GPU consumption

[nevcairiel]

Originally Posted by Plutotype

a. How much does a 65x3 3D LUT takes approximately in Gb? How much takes 256x3 3D LUT in storage capacity?

The default 8-bit LUT (256x3) is 96MB.
A 6-bit LUT (64x3) would be only 1.5MB

And for good measure, a 10-bit LUT (1024x3) would be 6GB.

They are not compressed.

[e-t172]

…and to make things perfectly clear, the way you calculate this for an N-D LUT is:

((size)^N)*N*(output bit depth) = (size in bits)

A full (256x256x256) madVR 3DLUT has a 8-bit input bit depth and a 16-bit output bit depth, so the size is (256^3)*3*16 = 96 MB.

[leeperry]

Originally Posted by cadmium

how in the world do I use pixel shaders with MadVR in KMPlayer?

It's a lot easier in PotP, put them all in its /PxShader/ subdirectory, et voilà:

[phneutral]

Hi there,

At the moment I have an AMD Radeon HD 5500 videocard in my i7 pc, and no matter what settings/codec packs/combinations I use, I keep getting judder with panning scenes. Except when I use the smooth video project codec pack, but then playback really looks as smooth as a home video. Not really appealing.

Are there any other options to get less judder? I can't seem to set my Samsung Syncmaster LCD Monitor to 24hz either. Would that be a limit of my videocard/drivers? I haven't tried something like "Powerstrip" yet, to add resolutions with custom Hz.

And do you guys think there's any difference between Nvidia and AMD in general? How they/their drivers handle the Hz/fps issue? Then maybe I'd consider buying a reasonable priced Nvidia card.

Hope someone can give me some options to try.

Kind regards,
Dennis

[mindbomb]

the easiest thing to do is to enable smooth motion in the madvr settings.
if you are not satisfied, set a custom resolution with Custom Resolution Utility, http://www.monitortests.com/forum/Thread-Custom-Resolution-Utility-CRU, with a 72hz refresh rate and use reclock as your audio renderer.

[phneutral]

Originally Posted by mindbomb

the easiest thing to do is to enable smooth motion in the madvr settings.
if you are not satisfied, set a custom resolution with Custom Resolution Utility, http://www.monitortests.com/forum/Thread-Custom-Resolution-Utility-CRU, with a 72hz refresh rate and use reclock as your audio renderer.

Thanks for your reply Mindbomb!

I tried smooth motion. Unfortunately, it gives more of a slight constant "vibration" in the video's.
Coincidently I stumbled upon the Custom resolution Utility, and tried to manually add 72 Hz, or 71.928, with the values: 1920, Front porch: 30, Sync width: 40, Back porch: 45 and 1080, Front porch: 3 lines, Synch width: 4 lines, Back porch: 5 lines.

Then when I switch to this new resolution, my desktop is moved to the left, and stretched weird. Text is readable, but a little bit unsharp... Am I doing something wrong with the Utility?

My screen shoud support up to 75, but don't know if it can handle 72 then?

[mindbomb]

http://hardforum.com/showthread.php?t=1670817

try those settings except use a 72hz refresh rate.

[phneutral]

Originally Posted by mindbomb

http://hardforum.com/showthread.php?t=1670817

try those settings except use a 72hz refresh rate.

I tried that, but then desktop still doesn't seem to fit anymore on my screen. Also, everything seems a little unsharp. Adjusting it with my LCD Monitor doesn't really seem to work, I don't seem to have the options on my monitor to reduce the size of the viewarea. It seems to handle it automatically.

Also, with these settings, moving windows around, seems to go with judder now, haha. Any other idea's?

[burfadel]

I have my main screen at 75 Hz, seems the smooth motion doesn't work properly at this rate. It does work at 60 Hz though (and on a connected TV), but it would be nice if it would function at 75 Hz.

Another major point about smooth motion, shouldn't this be available as an option for different screens? That is, if you have a couple of different screens available, some people may want it turned on if playing on one screen, but turned off if playing on another. At the moment the setting is universal and requires toggling.

[mindbomb]

Originally Posted by phneutral

I tried that, but then desktop still doesn't seem to fit anymore on my screen. Also, everything seems a little unsharp.

i guess your monitor can't do refresh rate changes. go back to 60hz and use smooth motion.

Originally Posted by burfadel

Another major point about smooth motion, shouldn't this be available as an option for different screens? That is, if you have a couple of different screens available, some people may want it turned on if playing on one screen, but turned off if playing on another. At the moment the setting is universal and requires toggling.

i don't see why. if you select the "only if there is judder" smooth motion option, then it wouldn't turn on if the other screens are running a refresh rate with no judder.

[phneutral]

Originally Posted by mindbomb

i guess your monitor can't do refresh rate changes. go back to 60hz and use smooth motion.

Gives a weird vibration to the video's..

[burfadel]

Well, even if smooth motion isn't added as screen independent, the fact is it doesn't like 75 Hz on my main monitor .

[GCRaistlin]

What should I write to "list all display modes madVR may switch to" field if I have a generic 17" LCD monitor that supports 60, 70, 72, 75 Hz frequencies?